Polymer insulator



FIG. 1 is a perspective view of a first embodiment of a polymer insulator, showing my new design;

FIG. 2 is a front elevation view thereof; the rear elevation view, right side elevation view, and left side elevation view being a mirror image thereof.

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof; and

FIG. 5 is a cross-sectional view taken in the direction of line 5-5 in FIG. 2.

FIG. 6 is a perspective view a second embodiment of a polymer insulator showing my new design;

FIG. 7 is a front elevation view thereof; the rear elevation view, right side elevation view, and left side elevation view being a mirror image thereof;

FIG. 8 is a top plan view thereof;

FIG. 9 is a bottom plan view thereof; and

FIG. 10 is a cross-sectional view taken in the direction of line 10-10 in FIG. 7.

FIG. 11 is a perspective view of a third embodiment of a polymer insulator, showing my new design;

FIG. 12 is a front elevation view thereof; the rear elevation view, right side elevation view, and left side elevation view being a mirror thereof;

FIG. 13 is a top plan view thereof;

FIG. 14 is a bottom plan view thereof; and,

FIG. 15 is a cross-sectional view taken in the direction of line 15-15 in FIG. 12.

The dot-dash broken lines FIGS. 2, 7, and 12 are for reference purposes only; the broken lines form no part of the claimed design. 

CLAIM The ornamental design for a polymer insulator, as shown and described. 